public function MainContentFallbackTest::testMainContentFallback in Drupal 9

Same name and namespace in other branches

1. 8 core/modules/system/tests/src/Functional/System/MainContentFallbackTest.php \Drupal\Tests\system\Functional\System\MainContentFallbackTest::testMainContentFallback()
2. 10 core/modules/system/tests/src/Functional/System/MainContentFallbackTest.php \Drupal\Tests\system\Functional\System\MainContentFallbackTest::testMainContentFallback()

Tests availability of main content: Drupal falls back to SimplePageVariant.

File

core/modules/system/tests/src/Functional/System/MainContentFallbackTest.php, line 47

Class

MainContentFallbackTest

Test SimplePageVariant main content rendering fallback page display variant.

Namespace

Drupal\Tests\system\Functional\System

Code

public function testMainContentFallback() {
  $edit = [];

  // Uninstall the block module.
  $edit['uninstall[block]'] = 'block';
  $this
    ->drupalGet('admin/modules/uninstall');
  $this
    ->submitForm($edit, 'Uninstall');
  $this
    ->submitForm([], 'Uninstall');
  $this
    ->assertSession()
    ->pageTextContains('The selected modules have been uninstalled.');
  $this
    ->rebuildContainer();
  $this
    ->assertFalse(\Drupal::moduleHandler()
    ->moduleExists('block'), 'Block module uninstall.');

  // When Block module is not installed and BlockPageVariant is not available,
  // Drupal should fall back to SimplePageVariant. Both for the admin and the
  // front-end theme.
  $this
    ->drupalGet('admin/config/system/site-information');
  $this
    ->assertSession()
    ->fieldExists('site_name');
  $this
    ->drupalGet('system-test/main-content-fallback');
  $this
    ->assertSession()
    ->pageTextContains('Content to test main content fallback');

  // Request a user* page and see if it is displayed.
  $this
    ->drupalLogin($this->webUser);
  $this
    ->drupalGet('user/' . $this->webUser
    ->id() . '/edit');
  $this
    ->assertSession()
    ->fieldExists('mail');

  // Enable the block module again.
  $this
    ->drupalLogin($this->adminUser);
  $edit = [];
  $edit['modules[block][enable]'] = 'block';
  $this
    ->drupalGet('admin/modules');
  $this
    ->submitForm($edit, 'Install');
  $this
    ->assertSession()
    ->pageTextContains('Module Block has been enabled.');
  $this
    ->rebuildContainer();
  $this
    ->assertTrue(\Drupal::moduleHandler()
    ->moduleExists('block'), 'Block module re-enabled.');
}